The recent release of Thunderbolts* has taken many fans by surprise, particularly with the introduction of what could potentially be the most formidable character in the Marvel Cinematic Universe (MCU) thus far. While this film primarily focuses on lesser-known heroes, its ending has added an intriguing twist that upends expectations.
In a unique development, the New Avengers are now officially based in the iconic Avengers Tower, amidst ongoing legal disputes involving Sam Wilson, who is challenging their right to the Avengers name. This conflict sets the stage for potential confrontations between teams. However, the inclusion of a significant new character in the New Avengers might shift the balance of power, especially following an understated reveal during the film’s opening acts.
The Emergence of Sentry: A Powerhouse in the MCU
Sentry’s Near-Omnipotence in Marvel Comics

As predicted in the lead-up to Thunderbolts*, Lewis Pullman’s character Bob was revealed to be Robert Reynolds, a man with a troubled past who gains extraordinary abilities from a potent version of the super-soldier serum known as the Golden Sentry Serum. In the comics, this transforms him into the Sentry, a being whose powers are described as equivalent to one million exploding suns, granting him a nearly limitless array of abilities, including:
- Super Strength
- Super Speed
- Invulnerability
- Molecular Manipulation
- Flight
- Healing Factor
- Teleportation
- Energy Manipulation
Although it’s uncertain whether the MCU’s Sentry mirrors this impressive power set—described as having the might of “one thousand exploding suns”—the character’s initial on-screen interactions suggest significant capabilities. During his debut, Sentry effortlessly outmatched the Thunderbolts, showcasing abilities like super speed and strength, along with flight and energy projection, including heat vision and telekinesis.
However, Sentry’s impressive prowess is countered by a noteworthy dilemma; his darker counterpart, the Void, which represents Bob’s negative emotions, poses a substantial risk. In his limited screen time, the Void demonstrated his chilling ability to banish many individuals to a disturbing realm filled with their worst memories. This unsettling feature hints that the Void may share all of Sentry’s powers, which raises serious questions about the potential consequences of Sentry’s emergence.
Despite Sentry’s significant strength, his initial introduction was surprisingly low-key, casting uncertainty over how this powerful character will unfold in the narrative.
Bob’s Introduction Sets a Distinct Tone
Bob’s Humble Beginnings: An Unconventional Introduction

Bob’s first appearance in Thunderbolts* marked a chaotic moment where he is trapped inside a box, only to emerge at a critical juncture. Amid a brawl, he unexpectedly reveals himself, ultimately leading to a pivotal event where Ghost completes her mission by brutally taking down Taskmaster. Rather than displaying heroism, Bob’s entrance is memorable for his reaction to the carnage—he vomits in response to witnessing violence.
This portrayal stands as one of the more peculiar introductions for a superhero. Bob’s weak constitution immediately characterizes him as an unlikely hero, providing an engaging setup for viewers who are aware of his future as Sentry. This disarming introduction cleverly sets up a stark contrast that heightens the eventual transformation.
Establishing Future Twists Through His Characterization
The Transformation from Ordinary to Extraordinary

The movie effectively captures Bob’s character arc. By introducing him as a hapless individual who unwittingly becomes embroiled in a superhuman conflict, the narrative sets a compelling stage for his inevitable transformation into a figure of immense power. In contrast to legendary heroes like Tony Stark and Thor, Bob feels remarkably relatable and deeply flawed.
Even for those who were able to predict Bob’s evolution into Sentry, the way his journey unfolds remains surprisingly captivating. He emerges as the quintessential human character, a stark contrast to his future self, the Sentry, whose powers raise the stakes for all involved. This character progression finds its roots in comic accuracy, showcasing the juxtaposition between Bob, Sentry, and the Void, where the latter looms as a dire threat.
Amplifying Sentry’s Power Through Contrast
Bob Versus Sentry: A Compelling Contrast

Bob’s portrayal amplifies the perception of Sentry’s strength through stark contrast. The difference between Bob’s ordinary persona and Sentry’s god-like abilities enhances the narrative’s impact even more than the dynamic between Bruce Banner and the Hulk, where the latter possesses a level of strategic intellect and resourcefulness. Bob’s transformation is visually understated compared to Banner’s, yet his early characterization complicates the viewer’s ability to reconcile the meek human he started as with the powerhouse he will become.
Looking forward, the potential for further exploration of this unique character dynamic within the MCU is exciting. As confirmed, Lewis Pullman is set to continue his role in Avengers: Doomsday, and it is likely that he will reprise his role as Sentry, despite ongoing efforts to keep his alter-ego restrained.
Notably, Bob’s journey includes a relevant subplot involving Doctor Strange and Mister Fantastic, who assist him in erasing the memories tied to both Sentry and the Void. This thematic evolution will surely create an engaging narrative thread in upcoming MCU films, especially following the events of Thunderbolts*. The ongoing development of Bob’s character, coupled with his mild-mannered nature, will remain a focal point in the evolving MCU landscape.